Directions
1. Heat butter in a large saucepan over medium heat. Stir in onion, corn and garlic. Season with salt, pepper, chili powder and cumin. Cook on medium high heat until the spices begin to brown.
2. Stir in beans, green chilies, and tomatoes; mix well. Steam the frozen spinach in the microwave with 1 Tablespoon of water, covered for about 3 minutes. Drain the spinach and add to the salsa; mix well. If using fresh spinach, do not steam it ahead of time, simply add it to the mixture and mix well. Add the cilantro and cook until heated through, about 3-5 minutes and adjust the seasonings as needed.
3. Serve with sour cream, shredded lettuce and tortilla chips.